20792295

素因数分解:

$3^5\times 5^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1$

素因数の和:286

約数の個数: 48

約数和(自身を含む): 37957920

約数和(自身を除く): 17165625

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 109, 135, 157, 243, 327, 405, 471, 545, 785, 981, 1215, 1413, 1635, 2355, 2943, 4239, 4905, 7065, 8829, 12717, 14715, 17113, 21195, 26487, 38151, 44145, 51339, 63585, 85565, 132435, 154017, 190755, 256695, 462051, 770085, 1386153, 2310255, 4158459, 6930765, 20792295]

約数ペア:

[(1, 20792295), (3, 6930765), (5, 4158459), (9, 2310255), (15, 1386153), (27, 770085), (45, 462051), (81, 256695), (109, 190755), (135, 154017), (157, 132435), (243, 85565), (327, 63585), (405, 51339), (471, 44145), (545, 38151), (785, 26487), (981, 21195), (1215, 17113), (1413, 14715), (1635, 12717), (2355, 8829), (2943, 7065), (4239, 4905)]